ZP-783 Catch StatusException when loading conflicts.

Released under the Affero GNU General Public License (AGPL) version 3.

src/backend/zarafa/importer.php

@@ -311,6 +311,7 @@ class ImportChangesICS implements IImportChanges {
             $potConflicts = $exporter->GetChangeCount();
             $started = time();
             $exported = 0;
+            try {
                 while(is_array($exporter->Synchronize())) {
                     $exported++;
 
@@ -322,6 +323,11 @@ class ImportChangesICS implements IImportChanges {
                         return;
                     }
                 }
+            }
+            // something really bad happened while exporting changes
+            catch (StatusException $stex) {
+                ZLog::Write(LOGLEVEL_WARN, sprintf("ImportChangesICS->lazyLoadConflicts(): got StatusException code %d while exporting changes. Ignoring and mark conflicts as loaded.",$stex->getCode()));
+            }
             $this->conflictsLoaded = true;
         }
     }